Abstract: A work machine may include an electric motor, an idler wheel, a drivable track engaged with the idler wheel, and an actuator that is electrically powered by the electric motor and configured to move the idler wheel to adjust the tension in the drivable track based on the torque output of the electric motor. The work machine also includes a controller configured to automatically control the electrical current input to the electric motor based on one or more monitored control factors associated with the work machine.

Abstract: An active track-chain sag management system for usage in conjunction with crawler vehicles having tracked undercarriages includes a movable track-engaging member positioned for physical engagement into a track-chain of the tracked undercarriage, an electric drive assembly controllable to adjust a track-tensioning position of the movable track-engaging member relative to the track-chain, and a controller operatively coupled to the electric drive assembly. The controller is configured to command the electric drive assembly to repeatedly adjust the track-chain sag of the track-chain by varying the track-tensioning position of the movable track-engaging member during operation of the tracked undercarriage.

Abstract: A rotary heat exchanger includes a hub configured to be rotatably driven by a shaft, a fan including a plurality of fan blades integrally coupled to the hub and extending radially outwardly therefrom, and a heat exchanger including a plurality of heat exchanger sections. The heat exchanger includes a plurality of cooling fins for receiving air from the fan. Each of the plurality of heat exchanger sections is located between two of the plurality of fan blades. The hub, the fan, and the heat exchanger are integrally formed as a single body by a three-dimensional printing process.

Abstract: A method of removing debris from a screen cover has a first mode of operation which includes: activating first and second fans to move first and second portions of air through screen cover and into a plenum, and moving the first and second portions of air from the plenum into a heat exchanger. A second mode of operation includes: deactivating the first fan for a first time period, activating the second fan for the first time period to move a third portion of air into the plenum, moving a first part of the third portion of air from the plenum into the heat exchanger during the first time period, and moving a second part of the third portion of air from the plenum through the screen cover during the first time period such that the second part of the third portion of air removes debris from the screen cover.

Abstract: A speed control system to control retardation energy of a vehicle and a method of controlling retardation energy of a vehicle are provided. The system includes an energy storage device configured to absorb and store the retardation energy of the vehicle. The energy storage device includes a power absorption limit determined at least partially by a temperature and a state of charge of the energy storage device. The system further includes a non-energy-storing retarder configured to absorb the retardation energy of the vehicle and a controller configured to route the retardation energy to the energy storage device up to the power absorption limit and route a remaining portion of the retardation energy to the non-energy-storing retarder.

Abstract: An axle cooling system for a vehicle that has a first axle hydraulic circuit that passes through a first axle assembly, a second axle hydraulic circuit that passes through a second axle assembly, a first pump that circulates axle oil through the first axle hydraulic circuit, a second pump that circulates axle oil through the second axle hydraulic circuit, a first temperature sensor that monitors a first axle temperature of the first axle assembly, and a second temperature sensor that monitors a second axle temperature of the second axle assembly. The first pump and the second pump are independently controlled from one another to circulate axle oil through the corresponding first or second axle hydraulic circuit.

Abstract: A control system for controlling a work machine includes an engine for producing power to propel the work machine during a normal operating mode, a cooling system for cooling at least the engine during the normal operating mode, and a controller for controlling the cleaning system during the normal operating mode and a clean operating mode. During the normal operating mode, the engine is running and the controller operably controls a cooling fan of the cooling system to rotate in a first rotational direction to produce a first air flow in a first direction. During the clean operating mode, the engine is not running and the controller operably controls the cooling fan to rotate in a second rotational direction to produce a second air flow in a second direction. The first rotational direction is opposite the second rotational direction, and the first direction is opposite the second direction.

Abstract: A battery starting and charging system that monitors battery and other sensor readings; tracks vehicle state, determines a charging voltage based on battery temperature and vehicle state; sets the alternator to charge the battery with the charging voltage; determines current collected parameters based on the battery and other sensor readings; and makes vehicle start predictions based on the current collected parameters. The system can also determine whether the vehicle actually started; add the current collected parameters to a set of start events if it started, and to a set of no-start events if it didn't start. The start prediction can also be based on the sets of start and no-start events for one or multiple vehicles. The collected parameters and start predictions can also be based on collected weather data. The system can use a local interconnect network (LIN) alternator with a LIN network.

Abstract: A work machine may include an electric motor, an idler wheel, a drivable track engaged with the idler wheel, and an actuator that is electrically powered by the electric motor and configured to move the idler wheel to adjust the tension in the drivable track based on the torque output of the electric motor. The work machine also includes a controller configured to automatically control the electrical current input to the electric motor based on one or more monitored control factors associated with the work machine.

Abstract: A pattern recognition system receives an image captured by an image capture device, of an operator and the operator is identified. Operator information is accessed, based upon the identified operator, and a control signal is generated to control a mobile machine, based upon the operator information.

Abstract: A control system for controlling a work machine includes an engine for producing power to propel the work machine during a normal operating mode, a cooling system for cooling at least the engine during the normal operating mode, and a controller for controlling the cleaning system during the normal operating mode and a clean operating mode. During the normal operating mode, the engine is running and the controller operably controls a cooling fan of the cooling system to rotate in a first rotational direction to produce a first air flow in a first direction. During the clean operating mode, the engine is not running and the controller operably controls the cooling fan to rotate in a second rotational direction to produce a second air flow in a second direction. The first rotational direction is opposite the second rotational direction, and the first direction is opposite the second direction.

Abstract: An active track-chain sag management system for usage in conjunction with crawler vehicles having tracked undercarriages includes a movable track-engaging member positioned for physical engagement into a track-chain of the tracked undercarriage, an electric drive assembly controllable to adjust a track-tensioning position of the movable track-engaging member relative to the track-chain, and a controller operatively coupled to the electric drive assembly. The controller is configured to command the electric drive assembly to repeatedly adjust the track-chain sag of the track-chain by varying the track-tensioning position of the movable track-engaging member during operation of the tracked undercarriage.

Abstract: A battery starting and charging system that monitors battery and other sensor readings; tracks vehicle state, determines a charging voltage based on battery temperature and vehicle state; sets the alternator to charge the battery with the charging voltage; determines current collected parameters based on the battery and other sensor readings; and makes vehicle start predictions based on the current collected parameters. The system can also determine whether the vehicle actually started; add the current collected parameters to a set of start events if it started, and to a set of no-start events if it didn't start. The start prediction can also be based on the sets of start and no-start events for one or multiple vehicles. The collected parameters and start predictions can also be based on collected weather data. The system can use a local interconnect network (LIN) alternator with a LIN network.

Abstract: A fluid control system that has a fluid assembly with a piston defined within a chamber, an electrical system having a motor configured to selectively reposition the piston, a controller in communication with the electrical system, and a sensor in communication with the controller to identify a fluid pressure value. Wherein, the controller identifies a desired fluid pressure range and selectively repositions the piston with the motor until the fluid pressure value is within the desired fluid pressure range.

Abstract: A speed control system to control retardation energy of a vehicle and a method of controlling retardation energy of a vehicle are provided. The system includes an energy storage device configured to absorb and store the retardation energy of the vehicle. The energy storage device includes a power absorption limit determined at least partially by a temperature and a state of charge of the energy storage device. The system further includes a non-energy-storing retarder configured to absorb the retardation energy of the vehicle and a controller configured to route the retardation energy to the energy storage device up to the power absorption limit and route a remaining portion of the retardation energy to the non-energy-storing retarder.

Abstract: An axle cooling system for a vehicle that has a first axle hydraulic circuit that passes through a first axle assembly, a second axle hydraulic circuit that passes through a second axle assembly, a first pump that circulates axle oil through the first axle hydraulic circuit, a second pump that circulates axle oil through the second axle hydraulic circuit, a first temperature sensor that monitors a first axle temperature of the first axle assembly, and a second temperature sensor that monitors a second axle temperature of the second axle assembly. The first pump and the second pump are independently controlled from one another to circulate axle oil through the corresponding first or second axle hydraulic circuit.

Abstract: A forestry machine configured to cut timber, where the forestry machine comprises a felling head including a support frame having an accumulation pocket, an accumulating arm, and a harvest arm. The forestry machine further comprises a stator having coils thereon adapted to produce a time varying stator magnetic field, a rotor having at least either a set of slots or a set of permanent magnets mounted thereon facing the stator and adapted to produce a radially directed flux or an axially directed flux. The rotor is rotatably coupled to the stator in axial alignment therewith by the time varying stator magnetic field. The rotor comprises a saw blade.

Abstract: A mobile construction machine detects a speech processing trigger. It then performs speech processing (such as speech recognition and natural language understanding, speech synthesis, etc.) based on the detected speech processing trigger, to generate a speech processing result. A control signal generator generates control signals based on the speech processing result. The control signals can be used to control the mobile construction machine, to control another mobile construction machine, to provide information to a remote server location, or to aggregate information from multiple remote server locations.

Abstract: A pattern recognition system receives an image captured by an image capture device, of an operator and the operator is identified. Operator information is accessed, based upon the identified operator, and a control signal is generated to control a mobile machine, based upon the operator information.

Abstract: A pattern recognition system receives an image captured by an image capture device, of an operator and the operator is identified. Operator information is accessed, based upon the identified operator, and a control signal is generated to control a mobile machine, based upon the operator information.